WO2020186648A1

WO2020186648A1 - Multi-chamber material-processing system

Info

Publication number: WO2020186648A1
Application number: PCT/CN2019/092526
Authority: WO
Inventors: 江艳存
Original assignee: 招远市汇潮新能源科技有限公司
Priority date: 2019-03-15
Filing date: 2019-06-24
Publication date: 2020-09-24
Also published as: CN111692587B; CN111692587A

Abstract

Disclosed is a multi-chamber material-processing system. The multi-chamber material-processing system comprises a furnace body, a material discharge device for discharging solid residue in a working chamber, and a material turning device for turning over the solid residue discharged from the working chamber. The furnace body is provided with the working chamber, which is used for processing materials, and a combustion chamber for providing heat to the working chamber, and the material turning device allows the solid residue to come into contact with an outer wall of the working chamber, such that the residual heat of the solid residue is transferred to the outer wall of the working chamber. The material-processing system may greatly improve an energy utilization rate and reduce discharge.

Description

Multi-cavity material processing system

Technical field

This application relates to the field of energy saving technology, and specifically to a multi-cavity material processing system.

Background technique

Energy is in short supply in today's world, and our country is a big energy consuming country. Take the cracking furnace as an example. The cracking furnace is used in many fields, such as domestic waste treatment and industrial waste treatment. The heating of the cracking furnace requires combustion energy. If the combustion efficiency is low, the combustion is insufficient or the heating rate is low, it will increase Energy consumption increases energy input costs. On the other hand, during the cracking process, a large amount of combustion exhaust gas will be emitted, and the exhaust gas contains a large amount of toxic and harmful gases, which will cause serious pollution to the environment.

Summary of the invention

In view of this, the present application provides a multi-cavity material processing, which can greatly improve energy utilization and reduce emissions.

Specifically, this application is implemented through the following technical solutions:

A multi-cavity material processing system, comprising a furnace body, the furnace body is provided with a working cavity for processing materials and a combustion cavity for providing heat to the working cavity; the system also includes a discharge for discharging solid residues in the working cavity Material device, and a material turning device that flips the solid residue discharged from the working cavity, the material turning device makes the solid residue contact with the outer wall of the working cavity, and transfers the waste heat of the solid residue to the working chamber The outer wall of the cavity.

Optionally, the turning device includes a rotating part that rotates along the central axis of the working chamber, and after the turning part turns, the solid residue is turned to the top of the working chamber.

Optionally, the rotating part includes a circuitous structure or a spiral structure, so that the solid residue contacts the outer wall of the working chamber along a circuitous path or a spiral path.

Optionally, the system further includes a heat exchange chamber, the residual liquid discharged from the working chamber is introduced into the heat exchange chamber, and the heat exchange chamber is provided with a pipeline communicating with the combustion chamber. The hot air obtained by heat exchange with the residual liquid in the exchange cavity is input into the combustion cavity through the pipeline.

Optionally, the system further includes a fluid flow restriction device, and the fluid discharged from the working chamber is discharged through the fluid flow restriction device,

The fluid flow direction restriction device is arranged around the outer wall of the working chamber to extend the fluid discharge path to transfer the waste heat to the outer wall of the working chamber.

Optionally, the fluid flow direction restriction device includes a restriction cavity, and the restriction cavity is a tortuous restriction cavity or a spiral restriction cavity.

Optionally, the system further includes a combustible residue recovery pipeline connected with the fluid flow restriction device, the combustible residue recovery pipeline is in communication with the combustion chamber, and solid residual carbon and/or combustible The fluid is delivered to the combustion chamber through the combustible residue recovery pipeline.

Optionally, the system further includes a stirring device, which is used to disperse the solid residue in the combustion chamber so that the residual carbon in the solid residue is fully burned.

Optionally, the system further includes a plurality of heat sources for heating the working cavity, and the plurality of heat sources are distributed at intervals to form a distributed heat source.

Optionally, it further includes a control unit and a temperature monitoring unit, the control unit is electrically connected to the temperature monitoring unit, and the control unit controls the heat energy released by each heat source according to the temperature monitored by the temperature monitoring unit.

Optionally, the system further includes a combustion monitoring unit and a control unit, and the control unit is in communication connection with the combustion monitoring unit,

The control unit controls the intake air volume of the combustion chamber according to the data monitored by the combustion monitoring unit.

Optionally, the cavity of the combustion chamber is sleeved outside the cavity of the working cavity to form a layered nested structure.

Optionally, the working cavity is rotated.

Optionally, the working cavity is arranged to rotate, and the rotating part is arranged on an outer wall of the working cavity.

Optionally, the system further includes a material guide device arranged in the working cavity, and the material guide device is used to move part of the material in a direction opposite to the advancing direction, facing the movement direction of the remaining part of the material.

The technical solution provided by this application can achieve the following beneficial effects:

The present application provides a multi-cavity material processing system, in which the solid residue discharged from the working cavity by the turning device contacts the outer wall of the working cavity, and the waste heat of the solid residue is transferred to the outer wall of the working cavity. Due to the high heat of the solid residue after the material is processed, the heat energy as a kind of energy can be transferred to the outer wall of the working chamber to heat the working chamber, thereby realizing the recycling of energy and greatly improving the utilization rate of energy.

Description of the drawings

Fig. 1 is a schematic diagram of multi-cavity material processing according to an exemplary embodiment of the present application.

detailed description

Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.

The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by those with ordinary skills in the field of the invention. The "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not mean a quantity limit, but mean that there is at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper", "top", "bottom" and similar words are only for convenience of description, and are not limited to one position or one spatial orientation. "Including" or "including" and other similar words mean that the elements or items before "including" or "including" now cover the elements or items listed after "including" or "including" and their equivalents, and do not exclude other elements Or objects. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

Please refer to FIG. 1, this application provides a multi-cavity material processing system (hereinafter referred to as the system), including a furnace body, a discharge device and a material turning device. Among them, the furnace body is provided with a working cavity for processing materials and a combustion cavity for providing heat to the working cavity. During the material processing, the working cavity is heated to a preset working temperature through the combustion cavity. According to different material processing methods, the preset working temperature can be different, which is not limited in this application.

The discharging device is used to discharge the solid residue in the working cavity, so that the solid residue is discharged to the outside of the working cavity, and the turning device is used to turn the solid residue outside the working cavity and make the solid residue and the outer wall of the working cavity Contact, so as to transfer the waste heat of the solid residue to the outer wall of the working chamber.

In the process of material processing, the solid residue produced in the furnace is often at a high temperature, and the solid residue with temperature is also a kind of energy source, which can be output as heat energy to the outside world. Therefore, this application proposes that in the process of material processing, the solid residue discharged from the working cavity can be used, and the waste heat of the solid residue can be transferred to the working cavity, and the working cavity can be heated or insulated, so as to realize the solid residue. The recycling of materials can reduce energy consumption.

In an alternative embodiment, the turning device may include a rotating part that rotates along the central axis of the working chamber, and the turning part may be driven by a power device (for example, a motor) to rotate, so that the solid residue and the outer wall of the working chamber contact. After the solid residue is discharged from the working cavity, it falls under the action of gravity. The rotating part is set to rotate along the central axis of the working cavity, which can drive the solid residue accumulated under the working cavity to move upwards and reach the top of the working cavity. It can more fully contact the outer wall of the working chamber.

The solid residue turned to the top of the working cavity can also be freely scattered after contact with the outer wall of the working cavity. At this time, the scattered solid residue will slide down along the contour of the outer wall of the working cavity, thereby increasing the solid residue and work The contact area of the outer wall of the cavity ensures that the working cavity is evenly heated.

In one way, the rotating part can be set to rotate at a speed of 3-10 r/min, so that the solid residue can continuously contact the outer wall of the working chamber, which improves the utilization of waste heat.

Further, the rotating part may also include a circuitous structure or a spiral structure, so that the solid residue is turned to the top of the working chamber along the circuitous path or the spiral path, and contacts the outer wall of the working chamber. The circuitous path or the spiral path will greatly extend the contact time and contact area between the solid residue and the outer wall of the working chamber, thereby further increasing the efficiency of heat transfer and improving the utilization of waste heat.

For the spiral structure, when the rotating part rotates, the spiral structure makes the solid residue move along the spiral path and surround the outer wall of the working chamber, achieving 360° contact between the solid residue and the outer wall of the working chamber. This way is significantly increased The contact area and contact time between the solid residue and the outer wall of the working chamber are improved, and the waste heat utilization rate is significantly improved.

On the other hand, after the material is heated in the working cavity, the residual liquid generated also carries heat. Therefore, the system in this application can also utilize the residual liquid. Based on this, the system may also include a heat exchange cavity, which can realize heat exchange, and transport the heat in the working cavity in the form of heat exchange to be recycled and reused. Specifically, the heat exchange cavity may be in communication with the working cavity, and the residual liquid discharged from the working cavity is introduced into the heat exchange cavity. The heat exchange chamber is provided with a pipeline communicating with the combustion chamber. In the heat exchange chamber, the hot air obtained by heat exchange between room temperature air and the residual liquid can be input into the combustion chamber through the pipeline, and the hot air can be used as the combustion chamber. Combustion aid. In this solution, the heat in the residual liquid is transferred to the room temperature air, and the room temperature air is heated and then passed into the combustion chamber to supply oxygen to the combustion chamber. This solution can reduce energy consumption on the one hand, and reduce high temperature emissions on the other hand.

It is worth noting that when hot air is used as a combustion aid, the oxygen in the combustion chamber can be reduced, thereby reducing the formation of nitrogen oxides.

In addition, the system provided by the present application can also utilize fluid (such as exhaust gas, fluidized dust, etc.) discharged from the working chamber. Specifically, the system also includes a fluid flow restriction device, and the fluid discharged from the working cavity flows to the restriction device through the fluid discharge. The fluid flow restricting device is arranged around the outer wall of the working chamber, and can be used to extend the exhaust gas discharge path. When the exhaust gas flows through the fluid to the restricting device, the waste heat is transferred to the outer wall of the working chamber at the same time. It can be seen that the fluid flow restriction device restricts the discharge path of the fluid, increases the contact time between the fluid and the outer wall of the working chamber, and maximizes the utilization of the fluid reasonably.

In one embodiment, the fluid flow direction restriction device may include a restriction cavity, and the restriction cavity may be configured as a circuitous restriction cavity or a spiral restriction cavity. Among them, the circuitous confinement cavity may be a wave-shaped cavity or a square wave cavity, etc., and the spiral confinement cavity is arranged around the outer wall of the working cavity. The heat transfer method may be heat transfer or heat radiation, and the former is preferred.

For materials containing organic materials, in the process of material processing, organic materials will be carbonized after being heated, and carbon can also be used as an energy source and used as fuel. Based on this, the system can also include a combustible residue recovery pipeline connected with the fluid flow restriction device, the combustible residue recovery pipeline is connected to the combustion chamber, and the combustible solid residue and fluid can pass through the combustible residue recovery pipe The road is transported to the combustion chamber. In this way, after the waste heat of the solid residue containing residual carbon and the fluid containing carbon black discharged from the working chamber is used, it can be further introduced into the combustion chamber heated for the working chamber. In the combustion chamber, the residual heat in the solid residue The residual carbon and carbon black in the fluid are further used as fuel to be burned to heat the working chamber, thereby realizing the reuse of residues, further saving energy consumption and improving energy utilization, and realizing the maximum use of energy.

Furthermore, for solid residues, carbon residues are easily encapsulated or mixed in inorganic materials. At this time, the step of dispersing solid residues is particularly important. Dispersing solid residues can make carbon more exposed. As a result, carbon can be fully burned and utilized.

In this application, the system also includes a stirring device, which is arranged in the combustion chamber for dispersing the solid residue, so that the solid residue containing residual carbon and the gas flow containing carbon black are fully burned.

In addition, in order to uniformly heat the working cavity, the system includes multiple heat sources, which are arranged at intervals to form a distributed heat source. The heat source may be a burner, which is arranged in the combustion chamber.

Generally speaking, the size of the cavity is relatively large, and single-point heating will cause uneven heating of the working cavity and a low heating rate. Therefore, setting multiple heat sources can effectively solve the above problems. Furthermore, a control unit and a temperature monitoring unit can be provided. The control unit is electrically connected to the temperature monitoring unit. The temperature monitoring unit is used to monitor the temperature of the working chamber. The control unit controls the heat source to release heat energy according to the temperature monitored by the temperature monitoring unit. Energy consumption, on the other hand, to ensure that the temperature of the working chamber is always kept within the preset working temperature range.

The system provided by the present application also includes a combustion monitoring unit and a control unit. The control unit is in communication connection with the combustion monitoring unit, and the control unit controls the intake air volume of the combustion chamber according to the data monitored by the combustion monitoring unit. In other words, by setting up a combustion monitoring unit, a reasonable configuration of the solid-gas ratio in the combustion chamber can be achieved, so that a more ideal combustion condition can be obtained in the combustion chamber. This solution can reduce the pressure loss in the combustion chamber, thereby saving energy.

Specifically, the control unit calculates the amount of gas according to the weight of the fuel in the combustion chamber, and controls the amount of gas introduced into the combustion chamber according to the amount of gas. In an alternative embodiment, the solid-gas ratio can be selected in the range of 3-11.

On the one hand, the control unit can control the amount of intake air in the combustion chamber. On the other hand, the control unit element can also control the amount of intake air delivered to each heat source to ensure a reasonable air distribution to each heat source.

In the multi-cavity material processing system provided in the present application, the cavity of the combustion cavity can be sleeved outside the cavity of the working cavity to form a layered nested structure. On the one hand, this solution can reduce the volume of the system and the floor space; on the other hand, it can make the working cavity be evenly heated to ensure that the temperature of the working cavity is at the preset working temperature. At the same time, it can effectively perform reasonable treatment of the processed materials The use of waste heat, the secondary use of energy for solid residues and carbon black fluid containing residual carbon.

Further, in order to increase the kinetic energy of the material in the working chamber and enable it to quickly realize carbon stripping, the system may also include a material guide device arranged in the working chamber to move part of the material in the opposite direction to the forward direction, and The movement directions of the rest of the materials are opposite. After this setting, the collision between the materials in the working cavity is strengthened, so that the materials can obtain more kinetic energy through the collision, and accelerate the realization of carbon peeling.

Further, the cavity of the working cavity can be set to rotate, that is to say, in the process of material processing, by rotating the cavity of the working cavity, the animal material can be rolled in the working cavity, which can play the role of mixing the material. The carbonization layer formed on the surface of the material can be stripped of carbon, and the material can be dispersed to avoid the accumulation of the material.

In a specific embodiment, the rotating part may be connected to the outside of the working cavity, and rotate with the rotation of the working cavity, thereby playing the role of turning the solid residue. In another embodiment, the rotating part can also be hollowed on the outer wall of the working chamber. When the working chamber rotates, the rotating part rotates under the action of centrifugal force, which can also play the role of turning the solid residue. This application does not limit the specific arrangement of the rotating part.

In the following, the experimental data is used to compare the relevant parameters of the system provided in this application and the existing furnace body regarding material handling. Please refer to Table 1 for details.

Table 1

It can be seen from the analysis of Table 1 that the waste heat utilization rate reaches 95%-98% by using the system provided by this application, which is more than 50% higher than the 60%-70% in the prior art.

The above are only the preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in this application Within the scope of protection.

Claims

A multi-cavity material processing system, comprising a furnace body, the furnace body is provided with a working cavity for processing materials and a combustion cavity for providing heat to the working cavity; characterized in that: the system also includes discharging solids in the working cavity A discharging device for the residual material and a turning device for turning the solid residual material discharged from the working chamber, the turning device makes the solid residual material contact with the outer wall of the working chamber, and transfers the residual heat of the solid residual material Give the outer wall of the working chamber.
The multi-chamber material processing system according to claim 1, wherein the turning device comprises a rotating part that rotates along the central axis of the working chamber, and after the rotating part rotates, the solid residue is turned to The top of the working cavity.
The multi-chamber material processing system according to claim 1, wherein the rotating part comprises a circuitous structure or a spiral structure, so that the solid residue contacts the outer wall of the working chamber along a circuitous path or a spiral path.
The multi-chamber material processing system according to claim 1, wherein the system further comprises a heat exchange chamber, and the residual liquid discharged from the working chamber is introduced into the heat exchange chamber, and the heat exchange chamber is provided with A pipeline connected with the combustion chamber, hot air obtained after heat exchange with the residual liquid in the heat exchange chamber is input into the combustion chamber through the pipeline.
The multi-chamber material processing system according to claim 1, wherein the system further comprises a fluid flow restriction device, and the fluid discharged from the working chamber is discharged through the fluid flow restriction device,

The fluid flow direction restriction device is arranged around the outer wall of the working chamber to extend the fluid discharge path to transfer the waste heat to the outer wall of the working chamber.
The multi-cavity material processing system according to claim 5, wherein the fluid flow direction restriction device comprises a restriction cavity, and the restriction cavity is a tortuous restriction cavity or a spiral restriction cavity.
The multi-chamber material processing system according to claim 5, wherein the system further comprises a combustible residue recovery pipeline connected with the fluid flow restriction device, and the combustible residue recovery pipeline is connected to the The combustion chamber is in communication, and the combustible solid residual carbon and/or fluid is transported to the combustion chamber through the combustible residual material recovery pipeline.
The multi-chamber material processing system according to claim 1, characterized in that: the system further comprises a stirring device, the stirring device is used to disperse the solid residue in the combustion chamber, so that the residual carbon in the solid residue is sufficient combustion.
The multi-chamber material processing system according to claim 1, wherein the system further comprises a plurality of heat sources for heating the working cavity, and the plurality of heat sources are distributed at intervals to form a distributed heat source.
The multi-chamber material processing system according to claim 1, further comprising a control unit and a temperature monitoring unit, the control unit and the temperature monitoring unit are electrically connected, and the control unit is based on the temperature monitoring unit The monitored temperature controls the heat energy released by each heat source.
The multi-chamber material processing system according to claim 1, wherein the system further comprises a combustion monitoring unit and a control unit, and the control unit is in communication connection with the combustion monitoring unit,

The control unit controls the intake air volume of the combustion chamber according to the data monitored by the combustion monitoring unit.
The multi-chamber material processing system according to claim 1, wherein the cavity of the combustion chamber is sleeved outside the cavity of the working chamber to form a layered nested structure.
The multi-chamber material processing system according to claim 1, wherein the working chamber is rotatably arranged.
The multi-chamber material processing system according to claim 2, wherein the working cavity is arranged to rotate, and the rotating part is arranged on an outer wall of the working cavity.
The multi-chamber material processing system according to claim 1, characterized in that: the system further comprises a material guide device arranged in the working chamber, and the material guide device is used to reverse part of the material in the forward direction The direction of movement is opposite to the movement direction of the rest of the material.